Facial palsy rehabilitation exercises four groups of movements: 1, eyebrow: eyes slightly upward, eyebrow arch upward, so that the forehead skin wrinkles. It can exercise the frontal muscle. If the eyes and face cannot blink at all, you can match the movements of downward looking and frowning to drive the eyes and face. Intended to exercise the orbicularis oculi muscle. 3, cheek puffing: lips tightly closed, cheeks puffed up with air, if serious air leakage can not be completed can be pressed at the corner of the mouth leakage. Intended to exercise the orbicularis oris muscle. 4, nuzzles: first the lips protrude, and then repeatedly nuzzles to both sides. Can exercise the smile muscle, cheek muscle. Each action is done for about 2 minutes each time, 5 times a day. Patients can peck at the mirror to grasp the essence of each action, who accurately and maximally complete these actions. H-B facial nerve function classification Grade I: normal, normal facial muscle movements in all regions; Grade II: mild functional abnormalities, general: mild facial muscle weakness on close examination, may have very light joint band movements. Resting state: symmetrical face with normal muscle tone. Movement: normal frontal area, complete eye closure with slight force, mild asymmetry of the corners of the mouth; Grade III: moderate functional abnormality, gross: marked facial muscle weakness without facial deformation, marked joint band movement or hemifacial spasm. Resting state: facial symmetry, normal muscle tone. Motor: frontal diminished, complete eye closure after force, mild asymmetry at the corners of the mouth with maximum force; Grade IV: moderate to severe functional abnormalities, gross: marked facial muscle weakness and/or facial deformation. Resting state: facial symmetry with normal muscle tone. Movement: absent in the frontal region, incomplete eye closure, asymmetry in the corners of the mouth after using maximum force; Grade V: severe functional abnormality, gross: only barely perceptible facial movement. Resting state: facial asymmetry. Movement: no frontal, incomplete eye closure, slight movement of the corners of the mouth; Grade VI: complete paralysis No movement.